import turtle

turtle.setup(500, 500, 0, 0)

turtle.penup()

# turtle.setx(0)
# turtle.sety(-100)
# turtle.goto(0, -100)
turtle.setpos(0, -100)

turtle.pendown()

# turtle.setpos()

# turtle.circle(100, 180)
turtle.circle(100, 360)

turtle.mainloop()